File name: tprf_tuningentrypoint.html
Obtaining
advice from the advisors
Advisors provide a variety of recommendations that help
improve
the performance of your application server.
Before you begin
The advisors provide
helpful performance as well as diagnostic advice
about the state of the application server.
About this task
Tuning WebSphere
® Application
Server is a critical part of getting the best performance from your
website.
However, tuning WebSphere Application
Server involves analyzing performance data and determining the optimal
server
configuration. This determination requires considerable knowledge
about the
various components in the application server and their performance
characteristics.
The performance advisors encapsulate this knowledge, analyze the performance
data, and provide configuration recommendations to improve the application
server performance. Therefore, the performance advisors provide a
starting
point to the application server tuning process and help you without
requiring
that you become an expert.
The Runtime Performance Advisor is extended
to
also provide diagnostic advice and is now called the Performance and
Diagnostic
Advisor. Diagnostic advice provides useful information regarding the
state
of the application server. Diagnostic advice is especially useful
when an
application is not functioning as expected, or simply as a means of
monitoring
the health of application server.
Procedure
-
Decide which performance advisor is right for the purpose, Performance and Diagnostic Advisor or Tivoli® Performance
Viewer advisor.
- Use the chosen
advisor to periodically check for inefficient settings,
and to view recommendations.
- Analyze Performance
Monitoring Infrastructure data with performance
advisors.
What to do next
Additionally,
you can use the heap monitor feature
to monitor the Java Virtual Machine (JVM) heap
size of a WebSphere Application
Server profile in comparison to pool size. The feature is available
for new WebSphere Application
Server profiles or profiles that are created after you update to the WebSphere Application
Server. For existing WebSphere Application Server
profiles, there is
a script available to add the feature. See the heapMonitor script
information.
In this information ...
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